steregonn.

/ˈstɛriːɡɒn/

Etymology: irregularly < Greek στερεός solid + γωνία angle.

Geometry.

(See quot. 1881.)

ΘΚΠ

the world > relative properties > number > geometry > angle > [noun] > other angles

vertical angle?a1560

trient1563

vertical1728

recipient1811

perigon1868

steregon1881

1881 G. B. Halsted Mensuration 78 A steregon, the natural unit of solid angle, is the whole amount of solid angle about a point in space.

1883 W. Thomson in Encycl. Brit. XVI. 25/2 [Adopts the word from Halstead, but uses it for ‘a plane solid angle’, i.e. the amount of solid angle at the centre which is subtended by the hemisphere].

This entry has not yet been fully updated (first published 1916; most recently modified version published online March 2019).

单词	steregon
释义	steregonn. /ˈstɛriːɡɒn/ Etymology: irregularly < Greek στερεός solid + γωνία angle. Geometry. (See quot. 1881.) ΘΚΠ the world > relative properties > number > geometry > angle > [noun] > other angles vertical angle?a1560 trient1563 vertical1728 recipient1811 perigon1868 steregon1881 1881 G. B. Halsted Mensuration 78 A steregon, the natural unit of solid angle, is the whole amount of solid angle about a point in space. 1883 W. Thomson in Encycl. Brit. XVI. 25/2 [Adopts the word from Halstead, but uses it for ‘a plane solid angle’, i.e. the amount of solid angle at the centre which is subtended by the hemisphere]. This entry has not yet been fully updated (first published 1916; most recently modified version published online March 2019). < n.1881
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